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Series GSE148782 Query DataSets for GSE148782
Status Public on Feb 26, 2022
Title Gain of gene regulatory network interconnectivity at the origin of vertebrates [RNA-seq]
Organisms Branchiostoma lanceolatum; Danio rerio
Experiment type Expression profiling by high throughput sequencing
Summary Signaling pathways control a large number of gene regulatory networks (GRNs) during animal development, acting as major tools for body plan formation. Remarkably, in contrast to the large number of transcription factors present in animal genomes, only a few of these pathways operate during development. Moreover, most of them are largely conserved along metazoan evolution. How evolution has generated a vast diversity of animal morphologies with such a limited number of tools is still largely unknown. Here we show that gain of interconnectivity between signaling pathways, and the GRNs they control, may have played a critical contribution to the origin of vertebrates. We perturbed the retinoic acid, Wnt, FGF and Nodal signaling pathways during gastrulation in amphioxus and zebrafish and comparatively examined its effects in gene expression and cis-regulatory elements (CREs). We found that multiple developmental genes gain response to these pathways through novel CREs in the vertebrate lineage. Moreover, in contrast to amphioxus, many of these CREs are highly interconnected and respond to multiple pathways in zebrafish. Furthermore, we found that vertebrate-specific cell types are more enriched in highly interconnected genes than those tissues with more ancestral origin. Thus, the increase of CREs in vertebrates integrating inputs from different signaling pathways probably contributed to gene expression complexity and the formation of new cell types and morphological novelties in this lineage.
 
Overall design RNA-seq experiments in zebrafish and amphioxus embryos after modifying different signaling pathways
 
Contributor(s) Gil-Gálvez A, Jiménez-Gancedo S, Acemel RD, Bertrand S, Schubert M, Escrivá H, Tena JJ, Gómez-Skarmeta JL
Citation(s) 35263228
Submission date Apr 16, 2020
Last update date May 29, 2022
Contact name Juan J. Tena
E-mail(s) jjtenagu@upo.es
Organization name CABD/CSIC
Street address Univ. Pablo Olavide, Ctra. Utrera km1
City Sevilla
ZIP/Postal code 41013
Country Spain
 
Platforms (2)
GPL21741 Illumina HiSeq 4000 (Danio rerio)
GPL24210 Illumina HiSeq 4000 (Branchiostoma lanceolatum)
Samples (33)
GSM4478830 RNA-seq in amphioxus, control sample, replicate 1
GSM4478831 RNA-seq in amphioxus, control sample, replicate 2
GSM4478832 RNA-seq in amphioxus, control sample, replicate 3
This SubSeries is part of SuperSeries:
GSE148783 Gain of gene regulatory network interconnectivity at the origin of vertebrates
Relations
BioProject PRJNA625713
SRA SRP256590

Download family Format
SOFT formatted family file(s) SOFTHelp
MINiML formatted family file(s) MINiMLHelp
Series Matrix File(s) TXTHelp

Supplementary file Size Download File type/resource
GSE148782_RAW.tar 8.8 Mb (http)(custom) TAR (of TXT)
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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